IVY-1665: checkdepsupdate: verify version is greater before reporting on available update

[eric-milles]

A status difference (integration vs release) may see a lesser version as the latest release. Ensure that the revision is greater before reporting it as an update. Ex: org.glassfish#jakarta.el 5.0.0-M1 -> 4.0.2

The logic for isGreater was extracted from org.apache.ivy.plugins.latest.LatestRevisionStrategy.MridComparator. This comparator checks more than is necessary for revision comparison.

[maartenc]

Thanks !
Instead of extracting the code from MridComparator, I think you should use the default LatestStrategy to compare the revisions. If you want, I can change that myself after applying this PR?

[maartenc]

Looks good, thanks !
One final remark (my fault sorry since I hinted you to the default LatestStrategy), but after some 2nd thoughts, it might be more correct to use the LatestStrategy from the resolver.

Something like this to get the LatestStrategy for a dependency?

    private LatestStrategy getLatestStrategy(IvyNode node) {
        DependencyResolver resolver = getSettings().getResolver(node.getResolvedId());
        LatestStrategy latestStrategy = null;
        if (resolver instanceof HasLatestStrategy) {
            latestStrategy = ((HasLatestStrategy) resolver).getLatestStrategy();
        }
        if (latestStrategy == null) {
            latestStrategy = getSettings().getDefaultLatestStrategy();
        }
        return latestStrategy;
    }